10557730 has 32 divisors (see below), whose sum is σ = 20180160. Its totient is φ = 3965760.

The previous prime is 10557727. The next prime is 10557737. The reversal of 10557730 is 3775501.

10557730 = 32² + 33² + ... + 316².

It is a super-2 number, since 2×10557730² = 222931325505800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10557737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34237 + ... + 34543.

It is an arithmetic number, because the mean of its divisors is an integer number (630630).

Almost surely, 2^10557730 is an apocalyptic number.

10557730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10557730 is a deficient number, since it is larger than the sum of its proper divisors (9622430).

10557730 is a wasteful number, since it uses less digits than its factorization.

10557730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 10557730 is about 3249.2660709766. The cubic root of 10557730 is about 219.3765406287.

The spelling of 10557730 in words is "ten million, five hundred fifty-seven thousand, seven hundred thirty".